Alright, let's work through 7860996 times 15790402 step by step
7860996 × 15790402 = 15790402 × (7860996)
+ 15790402 × 6 giving us 94742412
+ 15790402 × 90 that results in 1421136180
+ 15790402 × 900 producing 14211361800
+ 15790402 × 0000 that equals 0
+ 15790402 × 60000 that equals 947424120000
+ 15790402 × 800000 that equals 12632321600000
+ 15790402 × 7000000 producing 110532814000000

= 124128286960392
